Use images A-E below to choose free-body diagrams for the following physical situations at the instant in time forwhich they are described.FnonnFnomFnomFnommFfrictFfrictFfrict+FappFapptFgavFgravForavgravе.d.Fgav b.С.a.Several seconds after being thrown, a football is moving upwards and rightwards towards the peak of its trajectory.(Neglect Fair.)abd

let the football be thrown with some initial velocity (v) at some angle ∅ with the horizontal.Its…

Use images A-E below to choose free-body diagrams for the following physical situations at the instant in time for which they are described. Fnomm Fnomm Fnomm Fnomm Ffrict Ffrict Ffrict Fapp Fapp е. d. +Fgrav b. grav C. а. Several seconds after being thrown, a football is moving upwards and rightwards towards the peak of its trajectory. (Neglect Fair.) a C d

Use images A-E below to choose free-body diagrams for the following physical situations at the instant in time for which they are described. Fnomm Fnomm Fnomm Fnomm Ffrict Ffrict Ffrict Fapp Fapp е. d. +Fgrav b. grav C. а. Several seconds after being thrown, a football is moving upwards and rightwards towards the peak of its trajectory. (Neglect Fair.) a C d

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section4.3: Newton's Third Law

Problem 35SSC

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This problem pertains to the diagram on the right. Two dock workers pull a 1500 kg boat. a) What is the sum of force A and force B? Give the x and y components, in units of Newtons. b) What is acceleration of the boat? Give the x and y components, in units of m/s2. c) What is the magnitude of the boat’s acceleration, in units of m/s2? d) What is the direction of the boat’s acceleration? Give your answer as an angle measured relative to the x axis.
A loaded elevator with very worn cables has a total mass of 2200 [kg], and the cables can withstand a maximum tension of 28,000 [N]. Draw the free-body force diagram for the elevator. In terms of the forces on your diagram, what is the net force on the elevator? Apply Newton’s second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break. What would be the answer to part (a) if the elevator were on the moon, where g = 1.62 [m/s2]?
Two boxes are connected by a massless string across a massless frictionless pulley. Box S has a mass M and box H has a mass m as shown. a) Do a free-body diagram for these objects. b) Write Newton's Second Law equation for these objects, horizontal component only for box S and vertical component only for box H. c) Solve algebraically for the acceleration of the boxes. d) Given M=8.4 kg and m=5.7 kg, use your equation from part c) to find the value of the acceleration. e) Use this answer to find the tension in the string.
An object of mass M= 25 kg is being pulled by two forces as shown in the image: a) Determine the x and y component of each force. b) Find the magnitude and direction of the total force acting on the object. c)what is the magnitude and direction of its acceleration? d) What third force would you need so that the object does not accelerate?(give magnitude and direction and show it in the diagram)
Please answer C and D and please explain how you did it. As seen in the picture, an airboat is a special type of boat that has a large fan mounted on the back instead of a motor that sits in the water. It is used in places where the water is shallow and weedy, so motors that stick down into the water cannot be used. a) Using Newton’s Third Law, explain why the fan needs to be pointed so the air blows out backwards. b) If the force of the fan pushes the air backwards with 150 N, what is the forward force of the air on the boat? If the mass of the boat is 220 kg, and you ignore friction between the boat and the water, find how far the boat will travel in the first minute. c) How can the fan on the airboat be used to change the direction the boat is travelling in? How can it be used to increase or decrease the speed of the boat? d) If the boat is going upstream against a current that has a force of 250 N against the motion of the boat, find the acceleration of the boat if there…
Usually, we do not walk or even stand on a lightweight boat or raft because of the danger of falling into the water. If you have ever stepped off a small boat onto a dock, however, you have probably noticed that the boat moves away from the dock as you step toward the dock or out of the boat. A heavy dog running on a long lightweight raft presents a similar situation. At first, the raft and the dog are at rest with respect to the water (see figure A below) so that vi = 0. The dog then runs on top of the raft at vd = vd with respect to the water (see figure B below). The dog has half the mass of the raft. Find an expression for the velocity of the raft after the dog began running. (Use the following as necessary: vd.)
Usually, we do not walk or even stand on a lightweight boat or raft because of the danger of falling into the water. If you have ever stepped off a small boat onto a dock, however, you have probably noticed that the boat moves away from the dock as you step toward the dock or out of the boat. A heavy dog running on a long lightweight raft presents a similar situation. At first, the raft and the dog are at rest with respect to the water (see figure A below) so that vi = 0. The dog then runs on top of the raft at vd = vd with respect to the water (see figure B below). The dog has one sixth the mass of the raft. Find an expression for the velocity of the raft after the dog began running. (Use the following as necessary: vd.) vr =
Usually, we do not walk or even stand on a lightweight boat or raft because of the danger of falling into the water. If you have ever stepped off a small boat onto a dock, however, you have probably noticed that the boat moves away from the dock as you step toward the dock or out of the boat. A heavy dog running on a long lightweight raft presents a similar situation. At first, the raft and the dog are at rest with respect to the water (see figure A below) so that vi = 0.The dog then runs on top of the raft at vd = vd with respect to the water (see figure B below). The dog has half the mass of the raft. Find an expression for the velocity of the raft after the dog began running. (Use the following as necessary: vd.) vr =?i
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Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second exerts a force of 90.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 23.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (See the free-body diagram.) (b) Calculate the acceleration. (c) What would the acceleration be if friction were 15.0 N?